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Volume 68 
Part 12 
Page m1492  
December 2012  

Received 3 November 2012
Accepted 11 November 2012
Online 17 November 2012

Key indicators
Single-crystal X-ray study
T = 298 K
Mean [sigma](C-C) = 0.030 Å
R = 0.062
wR = 0.148
Data-to-parameter ratio = 21.3
Details
Open access

catena-Poly[di-[mu]3-bromido-hexa-[mu]2-bromido-dibromidobis(O-methyl pyridine-2-carboximidate-[kappa]2N,N')pentamercury(II)]

aDepartment of Chemistry, Omidieh Branch, Islamic Azad University, Omidieh, Iran, and bDepartment of Chemistry, Faculty of Science, Azarbaijan Shahid Madani University, Tabriz, Iran
Correspondence e-mail: sadifchemist@hotmail.com

The title compound, [Hg5Br10(C7H8N2O)2]n, contains two [mu]3-bridging Br atoms, six [mu]2-bridging Br atoms and two terminal Br atoms. One HgII atom, lying on an inversion center, adopts a distorted octahedral geometry defined by six Br atoms. Two HgII atoms adopt a distorted square-pyramidal geometry by five Br atoms and the other two HgII atoms have a distorted tetrahedral geometry by two N atoms from a chelating O-methyl pyridine-2-carboximidate ligand and two Br atoms. The Br atoms link the HgII atoms into a ribbon structure along [100].

Related literature

For metal complexes with O-alkyl pyridine-2-carboximidate, see: Barnard (1969[Barnard, P. F. B. (1969). J. Chem. Soc. A, pp. 2140-2144.]); Du et al. (2005[Du, M., Zhao, X. J., Batten, S. R. & Ribas, J. (2005). Cryst. Growth Des. 5, 901-909.], 2006[Du, M., Wang, Q., Wang, Y., Zhao, X. J. & Ribas, J. (2006). J. Solid State Chem. 179, 3926-3936.]); Jamnicky et al. (1995[Jamnicky, M., Seglá, P. & Koman, M. (1995). Polyhedron, 14, 1837-1847.]); Seglá & Jamnicky (1988[Seglá, P. & Jamnicky, M. (1988). Inorg. Chim. Acta, 146, 93-97.]); Suzuki et al. (1974[Suzuki, S., Nakahara, M. & Watanabe, K. (1974). Bull. Chem. Soc. Jpn, 47, 645-647.]).

[Scheme 1]

Experimental

Crystal data
  • [Hg5Br10(C7H8N2O)2]

  • Mr = 2074.26

  • Triclinic, [P \overline 1]

  • a = 7.6768 (7) Å

  • b = 10.7223 (10) Å

  • c = 11.0663 (10) Å

  • [alpha] = 92.067 (7)°

  • [beta] = 102.850 (7)°

  • [gamma] = 101.879 (7)°

  • V = 865.86 (14) Å3

  • Z = 1

  • Mo K[alpha] radiation

  • [mu] = 33.65 mm-1

  • T = 298 K

  • 0.30 × 0.19 × 0.18 mm

Data collection
  • Bruker APEXII CCD diffractometer

  • Absorption correction: multi-scan (SADABS; Bruker, 2001[Bruker (2001). SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.]) Tmin = 0.105, Tmax = 0.223

  • 7320 measured reflections

  • 3410 independent reflections

  • 2042 reflections with I > 2[sigma](I)

  • Rint = 0.084

Refinement
  • R[F2 > 2[sigma](F2)] = 0.062

  • wR(F2) = 0.148

  • S = 0.93

  • 3410 reflections

  • 160 parameters

  • H-atom parameters constrained

  • [Delta][rho]max = 1.89 e Å-3

  • [Delta][rho]min = -1.90 e Å-3

Table 1
Selected bond lengths (Å)

Hg1-N1 2.322 (14)
Hg1-N2 2.400 (16)
Hg1-Br1 2.524 (2)
Hg1-Br2 2.534 (2)
Hg2-Br2 3.204 (2)
Hg2-Br3 2.438 (2)
Hg2-Br5 3.189 (2)
Hg3-Br1 3.119 (2)
Hg3-Br2i 3.140 (2)
Hg3-Br3 3.337 (2)
Hg3-Br4 2.418 (2)
Hg3-Br5 2.463 (2)
Symmetry code: (i) x+1, y, z.

Data collection: APEX2 (Bruker, 2007[Bruker (2007). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.]); cell refinement: SAINT (Bruker, 2007[Bruker (2007). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.]); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); molecular graphics: ORTEP-3 (Farrugia, 2012[Farrugia, L. J. (2012). J. Appl. Cryst. 45, 849-854.]); software used to prepare material for publication: SHELXL97.


Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: HY2602 ).


Acknowledgements

We are grateful to the Islamic Azad University, Omidieh Branch, for financial support.

References

Barnard, P. F. B. (1969). J. Chem. Soc. A, pp. 2140-2144.
Bruker (2001). SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.
Bruker (2007). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.
Du, M., Wang, Q., Wang, Y., Zhao, X. J. & Ribas, J. (2006). J. Solid State Chem. 179, 3926-3936.  [ISI] [CSD] [CrossRef] [ChemPort]
Du, M., Zhao, X. J., Batten, S. R. & Ribas, J. (2005). Cryst. Growth Des. 5, 901-909.  [CSD] [CrossRef] [ChemPort]
Farrugia, L. J. (2012). J. Appl. Cryst. 45, 849-854.  [ISI] [CrossRef] [ChemPort] [details]
Jamnicky, M., Seglá, P. & Koman, M. (1995). Polyhedron, 14, 1837-1847.  [ChemPort]
Seglá, P. & Jamnicky, M. (1988). Inorg. Chim. Acta, 146, 93-97.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.  [CrossRef] [details]
Suzuki, S., Nakahara, M. & Watanabe, K. (1974). Bull. Chem. Soc. Jpn, 47, 645-647.  [CrossRef] [ChemPort] [ISI]


Acta Cryst (2012). E68, m1492  [ doi:10.1107/S1600536812046545 ]

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